definite clause
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2021 ◽  
Vol 9 (3A) ◽  
Author(s):  
Salah Alnajem ◽  
◽  
A. M. Mutawa ◽  
Hanan AlMeer ◽  
Aseel AlQemlas ◽  
...  

This paper introduces a computational approach to Arabic syntax. The approach uses the Lexical Functional Grammar (LFG) framework. Semantic networks and frames were used to handle computational semantics using lambda notation. This was implemented in Prolog using Definite Clause Grammar (DCG) as a formalism for analyzing and generating syntactic structure.



2016 ◽  
Vol 16 (4) ◽  
pp. 498-508 ◽  
Author(s):  
WŁODZIMIERZ DRABENT

AbstractA sufficient and necessary condition is given under which least Herbrand models exactly characterize the answers of definite clause programs.





Author(s):  
Krishnaprasad Thirunarayan

Attribute grammars are a framework for defining semantics of programming languages in a syntax-directed fashion. In this chapter, we define attribute grammars, and then illustrate their use for language definition, compiler generation, definite clause grammars, design and specification of algorithms, and so forth. Our goal is to emphasize its role as a tool for design, formal specification and implementation of practical systems, so our presentation is example rich.





2005 ◽  
Vol 5 (4-5) ◽  
pp. 467-501 ◽  
Author(s):  
HENNING CHRISTIANSEN

A grammar formalism based upon CHR is proposed analogously to the way Definite Clause Grammars are defined and implemented on top of Prolog. These grammars execute as robust bottom-up parsers with an inherent treatment of ambiguity and a high flexibility to model various linguistic phenomena. The formalism extends previous logic programming based grammars with a form of context-sensitive rules and the possibility to include extra-grammatical hypotheses in both head and body of grammar rules. Among the applications are straightforward implementations of Assumption Grammars and abduction under integrity constraints for language analysis. CHR grammars appear as a powerful tool for specification and implementation of language processors and may be proposed as a new standard for bottom-up grammars in logic programming.



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